SOLENOID VALVE

PURPOSE: To obtain highly responsive opening and closing movements with a small-sized electromagnet by a structure in which a piston slide as a locking member is balanced in pressure not only in the closing state but also in an opening state. CONSTITUTION: A guide portion 11 of a piston slide 12 urg...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUARUTAA SHIYURAAKUMIYURAA, ERUNSUTO RINDAA, MANFUREETO RUOFU, HERUMUUTO REMUBORUTO
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:PURPOSE: To obtain highly responsive opening and closing movements with a small-sized electromagnet by a structure in which a piston slide as a locking member is balanced in pressure not only in the closing state but also in an opening state. CONSTITUTION: A guide portion 11 of a piston slide 12 urged against a spring 32 by the excitation of an electromagnet 29 is engaged with a stepped aperture portion 4 formed on a valve casing 1. A seal edge 15 formed by an annular recess 14 arranged on the slide 12 is mountable with respect to a valve seat 7. The annular recess 14 is so arranged that it reaches the interior of a stepped aperture portion 5. A cylinder portion 16 of the slide 12 is inserted in the stepped aperture portion 5. An annular chamber 17 is formed adjacent to the valve seat 7. The annular chamber 17 is connected to a high pressure chamber of an injection pump or the like via a communication path 18. An annular groove 19 communicating with the annular recess 14 is formed in the exit aperture 5 and connected to a low pressure chamber of an injection pump or the like via a communication path.